Pawel Relowicz, of Raglan Street, Hull, appeared at Hull Crown Court on Monday accused of five counts of burglary, three counts of voyeurism, three counts of outraging public decency and one of receiving stolen goods.
He was arrested on suspicion of abduction on 6 February in connection with Squire’s disappearance and he remains under investigation.
Relowicz appeared in court on Monday dressed in a grey sweatshirt and sat in the dock with an interpreter and two security dock officers.
The defendant, who has short brown hair, spoke through the interpreter only to confirm his name during the 15-minute appearance.
No details of the charges were read out in court on Monday.
Relowicz entered no pleas and the case was adjourned for a week when the charges will be put to him.
Previous hearings before magistrates have heard the three charges of outraging public decency include one of “having your penis out in your right hand” on Boxing Day in a public place in Hull.
Another alleges Relowicz of “having your penis out and masturbating” in Hull on January 12.
He is also accused of masturbating in Wellesley Avenue, where Squire’s student house is located, on 19 January this year.
The three voyeurism charges allege Relowicz watched another person “doing a private act” for his own sexual gratification at addresses in Hull on three dates between February and July last year.
The defendant is also accused of stealing items including sex toys, underwear, condoms, photographs, electronic equipment and cash at five burglaries in the city between 2017 and 2019, and receiving a stolen mobile phone in November last year.
There was no application for bail on Monday and Judge David Tremberg remanded Relowicz back into custody.
He will next appear at Hull Crown Court on 18 March, when he is expected to enter pleas to all 12 charges.
A trial date was fixed for 22 July at Sheffield Crown Court.
Squire, 21, was reported missing on 1 February and, despite intensive searches since that time, police have found no sign of her.
Relowicz was questioned last month in connection with her disappearance and was later charged with three counts of burglary, one count of outraging public decency and one count of voyeurism.